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 Glossary |
| Click on a letter to browse the terms associated with it. |
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| Back-focus | Back-focus is a procedure of adjusting the physical position of the CCD-chip/lens to achieve the correct focus for all focal length settings. This is critical to achieve quality video images under varying lighting conditions. |
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| BNC | BNC stands for Bayonet-Neil-Concelman connector, and it is the "standard" connector in CCTV and broadcast TV for transmitting a basic bandwidth video signal over a coaxial cable. It can also be used as abbreviations for British Naval Connector or Bayonet Nut Connector. |
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| Bandwidth | The number of bits used to transmit data. For consistency, here are the most common bandwidth units: · bps – bits per second, also known as baud · kbps – kilobits per second · Mbps – Megabits per second · Gbps – Gigabits per second · KB – kilobyte · MB – megabyte · GB – gigabyte |
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| BVIP | Bosch Video IP, the suite of IP-based products that encompass encoders, decoders, NVR systems and video management software. |
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| Backup Battery | A battery used as a secondary power source in the event normal AC power failure, normally housed in the alarm panel enclosure. |
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| Back Light Compensation (BLC) | Selectively amplifies parts of the image to compensate for large contrast differences when only a portion of the image is brightly lit (e.g. a person in a sunlit doorway). |
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| Balun (Balance Unbalanced) | A device that converts a balanced video signal (e.g. as used on twisted pair) line to an unbalanced signal (e.g. as used on coax). In a balanced line, such as twisted pair, both wires are electrically equal. In an unbalanced line such as coax, one line has different electrical properties than the other. |
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| Bilinx (Bosch AutoDome) | A communications format that allows remote control, configuration and updates to be performed over the video cable (Coax or Passive UTP). |
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| Bi-Phase (Bosch AutoDome) | Pan/Tilt/Zoom protocol for Bosch products. |
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